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DE69920964D1 - xDSL Transceiver und Verfahren zum Verbessern der Bitrate und/oder des Spielraums, bei dem eine quadratur-amplitudenmodulierte Kommunikation ausgeführt wird - Google Patents

xDSL Transceiver und Verfahren zum Verbessern der Bitrate und/oder des Spielraums, bei dem eine quadratur-amplitudenmodulierte Kommunikation ausgeführt wird

Info

Publication number
DE69920964D1
DE69920964D1 DE69920964T DE69920964T DE69920964D1 DE 69920964 D1 DE69920964 D1 DE 69920964D1 DE 69920964 T DE69920964 T DE 69920964T DE 69920964 T DE69920964 T DE 69920964T DE 69920964 D1 DE69920964 D1 DE 69920964D1
Authority
DE
Germany
Prior art keywords
margin
bit rate
quadrature
amplitude
improving
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE69920964T
Other languages
English (en)
Other versions
DE69920964T2 (de
Inventor
C Jones
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Broadcom Corp
Original Assignee
Broadcom Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Broadcom Corp filed Critical Broadcom Corp
Publication of DE69920964D1 publication Critical patent/DE69920964D1/de
Application granted granted Critical
Publication of DE69920964T2 publication Critical patent/DE69920964T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/0064—Rate requirement of the data, e.g. scalable bandwidth, data priority
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH
    • H04L5/0046—Determination of the number of bits transmitted on different sub-channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/023—Multiplexing of multicarrier modulation signals, e.g. multi-user orthogonal frequency division multiple access [OFDMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/14—Two-way operation using the same type of signal, i.e. duplex
    • H04L5/143—Two-way operation using the same type of signal, i.e. duplex for modulated signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Magnetic Ceramics (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Soft Magnetic Materials (AREA)
DE69920964T 1998-12-23 1999-12-17 xDSL Transceiver und Verfahren zum Verbessern der Bitrate und/oder des Spielraums, bei dem eine quadratur-amplitudenmodulierte Kommunikation ausgeführt wird Expired - Lifetime DE69920964T2 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US11361798P 1998-12-23 1998-12-23
US113617P 1998-12-23
US309340 1999-05-11
US09/309,340 US6310909B1 (en) 1998-12-23 1999-05-11 DSL rate adaptation
PCT/US1999/030241 WO2000039977A1 (en) 1998-12-23 1999-12-17 Method for optimisation of dsl communications

Publications (2)

Publication Number Publication Date
DE69920964D1 true DE69920964D1 (de) 2004-11-11
DE69920964T2 DE69920964T2 (de) 2006-03-09

Family

ID=26811261

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69920964T Expired - Lifetime DE69920964T2 (de) 1998-12-23 1999-12-17 xDSL Transceiver und Verfahren zum Verbessern der Bitrate und/oder des Spielraums, bei dem eine quadratur-amplitudenmodulierte Kommunikation ausgeführt wird

Country Status (6)

Country Link
US (3) US6310909B1 (de)
EP (1) EP1142249B1 (de)
AT (1) ATE279064T1 (de)
AU (1) AU2196600A (de)
DE (1) DE69920964T2 (de)
WO (1) WO2000039977A1 (de)

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DE69920964T2 (de) 2006-03-09
AU2196600A (en) 2000-07-31
US20020044610A1 (en) 2002-04-18
ATE279064T1 (de) 2004-10-15
US6310909B1 (en) 2001-10-30
US7609757B2 (en) 2009-10-27
EP1142249A1 (de) 2001-10-10
US20050157804A1 (en) 2005-07-21
US6904082B2 (en) 2005-06-07
WO2000039977A1 (en) 2000-07-06

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